Grease-cup.



R. S. BERGER.

GREASE 0 AvrmoATloN FILED .17, ma.

1,095,546. Patented May 5, 1914.

.object vgrease cup which is especially adapted for entran errar-nsearner inneren. p A

nonnen' s. Banaan, orI tvsnnxnne, New geen.

' Genese-eur.

Specification of Letters Eatent.

Patenten May 5, tais.

Application led December 17, w18. Serial No. 867326,.

,To all wlw/1n t may concern.'

of which -the following is a specification,

reference being'had therein to the accompanying drawing.

This invention relates to grease cups, the of the invention being toproduce a use on the hubs of vehicle Wheels, the grease cup embodyingmeans whereby the grease or other lubricant is expressed lfrom the body.of the cup and discharged upon the spindle on which the Wheel revolves,the said grease cup embodying novel means whereby the expressing plungeris lock receiving end of the grease cup is held in interloekedengagement with the body of the cup. v

With the above and otherobjects in view,

the invention consists in the novel construca vehicle Wheel, showing thegrease cup of i with' longitudinally extending thisinvention 'applied-thereto and shown in side elevation. Fig.2 is a diametrical seetionthrough the grease cup on an enlarged scale.. Fig. Sis a detailperspective view of the cap.` Fig.4 is a fragmentary elevation of thegrease cup, showing the same thread.- ed to screw into a Wheel hub..

ln Fig. 1, 1 desio'nates the hub of a vehicle Wheel in which iscontained the usual metal axle skein 2.

The grease cup of this invention which is generally designated A,comprises-a hollow cylindrical body 3 forming the cup proper, the sainebeing of any suitable size to receive the desired quantityof grease orother .lubricant. This cup is left open at one end to provide forintroducing the grease therein and opposite the -x'illing opening'thecup is formed with a discharge opening 4. The discharge end of the cupis reduced as shown at 5 and is provided on the outside thereof keys orribs Y ed against return movement, and the cap'which closes the Aathumb-piece. If the plunger when the cup as a who@v is driven into awooden hub as illustratedin Fig. 1, to prevent the grease cup fromturning relatively 6 formed integrallytberewith and adapted,

to said hub. Beyond the portion 5 the cup is again.' reduced as shown at7 to form a tubular conduit extending to the interior of the skein 2 andit may be noted at this point that the tubular conduit 7 is primarilymade of sufficient length to extend through any sized hub and before'being applied vto the huh, the conduit 7 isl cut to the proper lengthto terminate flush with the inside. faceof the skein or bushing 2 asindicated in Fig. 1. The hollow cylindrical body or cup 3 is furtherprovided with' a pin 8 extending laterally from the side thereof toengage a slot 9 in the flange 10 of a cap 11 Which fits over the fillingend of the cup 3 as shown in Figs. l and 2 and is held in place thereonh v means hereinafter described, the pin 8- vserving to prevent the cap11 from rotating relatively to the cup 3. y

12, .designates an expressing plunger which is threaded into the cup 3as indi- 'cated at 13 so that 'by turning. said plunger, it may beadvanced and retracted lengthwise of the cup B. 'The plunger 12 isprovided With an outwardly extending stein'14 -which passesloosely'-througha central opening in the. cap 1-1 `and is provided atits outer extremity with a head 15 preferably formed with an extension16 constituting 12 is formed integrally with the stem 14, the head 15 ismade separate therefrom and formed with a socket 17 to receive theadjacent end of the stem lupon which it is fastened by means of `asuitable fastener 1S suchas a pin. coiled expansion. spring 19 eneirclesthe stem 14 and has one extremity thereof bent as sho-wn at 2O andinserted in a hole or socket 21 `i n the head 15. The .other eX- trcmityof the .spring 19 is bent :1s-shown at 22 to form a spring detent whichis adapted toengage in one of a series of ll-shaped notches 23 formed inthe outer face ofthe cap 11, the said extremity of the spring beingadapted to snap over the ll -shaped notches 23 as the head 15 isturned.. and prevent the stem 14 and plunger 12 from turning backward.

From the foregoing description it will he understood thatthe spring 19serves to hold the cap 11 in place on the cup 3; it also maintains theengagement between the slotted flange l() of the cap1 and the pin or key8 on the cup thereby preventing the cap from turning on the cup; it alsoserves as a detent to prevent the plunger 12 from turning within thecup- 3 and thus holds said plunger at any point in its inward movementwhere' it may be left after forcing a portion ot' the lubricant to thespindle or journal.

To detach the cap 1l and the plunger 12, the spring 19 is compressedinthe direction of the head 15 so as to disengage said spring from thenotches or teeth 23. This permits the-cap l1 to be moved out of'engagement with the locking pin 8 and also permits the plunger 12 to beturned haekwardly until it passes out of threaded engagement. with thecup 3.

If it is desired to use the grease -cup as a whole'in connection Withmetal hubs or axle boxes, instead of the longitudinally extending keysor ribs 6, screw-threads 24 may be provided on the outside of theportion 5 of the cup between the portions 3 and 7, as shown in Fig. 4,so that it may be screwed into an internally threaded socket in the hubor box instead of driving the same into place which is permitted by theuse of the longitudinal ribs 6.

What I claim is A grease cup comprising a hollow eylin drieal bodyhaving affilling opening;y at one end and a discharge openingfat theoppositel end, a pin projecting from the side of vsaid stem, and anexpansion spring coiled around said stem externally of said body, oneextremity of said springbeing attached to said head and the otherextremity of said spring being adapted to hold the cap on said body andalso to engage the ratchet teeth on the cap and look said )lungen Intestimony' whereof I a x my signature in presence of two Witnesses.

ROBERT S. BERGER.

Witnesses:

FRED WEsToorr, L. D. THOMPSON.

